SHAREHOLDERS' EQUITY: (Details 3) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Weighted average assumptions used in the valuation of all option awards
Stock compensation expense	$ 200,000	$ 400,000
Stock Options
Number of Shares
Outstanding at the beginning of the period (in shares)	1,537,500	722,500
Granted (in shares)	275,000	850,000
Exercised (in shares)		(30,000)
Cancelled (in shares)	(450,000)	(5,000)
Outstanding at the end of the period (in shares)	1,362,500	1,537,500	722,500
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 1.19	$ 1.13
Granted (in dollars per share)	$ 1.39	$ 1.42
Exercised (in dollars per share)		$ 1.00
Cancelled (in dollars per share)	$ 1.34	$ 5.16
Outstanding at the end of the period (in dollars per share)	$ 1.19	$ 1.19	$ 1.13
Weighted Average Remaining Contractual Term
Outstanding at the beginning of the period	8 years 7 months 6 days	9 years 3 months 18 days	9 years 4 months 24 days
Outstanding at the end of the period	8 years 7 months 6 days	9 years 3 months 18 days	9 years 4 months 24 days
Aggregate Pretax Intrinsic Value
Outstanding at the beginning of the period (in dollars)	743,745
Outstanding at the end of the period (in dollars)	140,000	743,745
Other disclosures
Number of vested outstanding options (in shares)	387,500	662,500	172,500
Number of unvested outstanding options (in shares)	975,000	875,000	550,000
Unrecognized compensation costs related to non-vested option awards	186,000
Option issued (in shares)	200,000	472,000
Weighted average assumptions used in the valuation of all option awards
Risk free interest rate (as a percent)	0.62%	0.95%
Contractual lives	10 years	10 years
Expected lives	10 years	10 years
Expected volatility (as a percent)	70.30%	70.90%
Fair Value per Option (in dollars per share)	$ 0.17	$ 0.56
Stock compensation expense	$ 180,000	$ 398,000